curl --request GET \
  --url https://scan.sv-1.global.canton.network.sync.global/api/scan/v0/lsu

{
  "lsu": {
    "topologyFreezeTime": "2023-11-07T05:31:56Z",
    "upgradeTime": "2023-11-07T05:31:56Z",
    "successorPhysicalSynchronizerId": "<string>"
  }
}